Yes

The article you sent, which I'm gathering you didn't read, says the only emails w privilege were the ones to Holder's mother and wife.

Judicial Watch said the White House is withholding the contents of the Holder emails between his wife and mother citing not only the executive privilege, but the “deliberative process” exemption, which is normally used to exclude from public disclosure any information “that could chill internal government deliberations.”

And here's where it explicitly states the census question is to increase white voting power.